51467930911 has 4 divisors (see below), whose sum is σ = 54176769400. Its totient is φ = 48759092424.

The previous prime is 51467930897. The next prime is 51467930923. The reversal of 51467930911 is 11903976415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11903976415 = 5 ⋅2380795283.

It is a cyclic number.

It is not a de Polignac number, because 51467930911 - 2⁵ = 51467930879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51467930971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354419216 + ... + 1354419253.

It is an arithmetic number, because the mean of its divisors is an integer number (13544192350).

Almost surely, 2^51467930911 is an apocalyptic number.

51467930911 is a deficient number, since it is larger than the sum of its proper divisors (2708838489).

51467930911 is a wasteful number, since it uses less digits than its factorization.

51467930911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708838488.

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 51467930911 in words is "fifty-one billion, four hundred sixty-seven million, nine hundred thirty thousand, nine hundred eleven".